Frank shaw



(No Model.)

F. SHAW.

GALVANIG BATTERY.

No. 400,126. I Patented Mar. 26, 1889 mlllllllfi ylklllllllllk n, PETERS. Pnmumgn hn. Washi nnnnn r.

" UNIT D STATES'PATENT OFFICEQ FRANK SHZUV, OF NE\V YORK, N. Y.

GALVAN IC BATTE RY.

'SI EGIFICATION forming part of Letters Patent No. 400,126, dated March 26, 1889.

7 Application filed January 3, 1889. Serial No. 295,328. (No model.)

To aZZ whom it may concern;

, Be it known that I, FRANK SHAW, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented a certain new and useful Improved Battery, of which the followingis a specification.

My invention relates to the carbon or negative element of galvanic batteries; and it consists in a novel construction of such element, the design of which is to furnish a large surface of action, and also to provide for circulation of the battery-liquids.

The object of my invention is also to secure cheapness of construction and to provide a magazine of battery material in the element itself. I

My invention relates, further, to the manner of supporting the carbon element and making electrical connection between the same and the connections outside the battery, the object being to prevent corrosion of the metal connections. My invention consists, essentially, in a negative element of carbon comprising two concentric cylinders attached together at one end and open at their other to assist in circulation of the battery-fluid.

My invention consists, also, in a novel carbon element composed of a head or connecting-piece and two cup-shaped extensions concentric with one another and integral with said head.

My invention consists, also, in slotting the outer cylinder to form a space for the positive element or electrode and to assist in circulation of the battery-liquid.

My invention consists, also, in providing the inner cylinder with a plug or stopper at its lower end and with a slot or opening in its side, the hollow space in said cylinder then forming a receptacle for the desired chemical which renews the strength of the batteryliquid as the same becomes weak through use.

My invention consists, also, in certain improved details of construction, to be more particularly hereinafter described, and then specified in the claims.

In the accompanying drawings I have shown in Figure 1 in vertical central section a form of battery having a carbon element constructed and supported in accordance with my invention. Fig. 2 is avertical sect-ion ot' amodi fied construction of negative element; Fig. 3 shows an element modified in form at its top. Fig. 4 is a cross-section on the line X X, Fig. 1.

Referring to Fig. 1, the carbon element is shown as consisting of a head, B, having the two concentric cup-shaped projections D and E, formed of carbon and integral with the head. The element is supported from the caver-plate of the battery, as indicated, by means of ametal rod, N, having a carbon head, M, which fits tightly into the socket R in the top of the battery element. The rod N passes through an opening in the carbon and the head of the rod takes against an internal offset, as shown. The lower end of the rod is protected by cement, H, and the carbon M is paraffined to prevent acid or liquid fumes from attacking the rod through the pores of the carbon. The part of the rod N between the carbon and the battery-cover is protected by a washer of soft rubber, P, clamped between the head and the cover by means of a nut, Q, engaging with a screw-thread on the rod outside of the cover.

0 indicates a clamping-nut for holding any wire or conductor to be connected to the negative or carbon element. Any other means of support might be employed-as, for instance, that indicated'in Fig. 3, where the head of the carbon has a projection adapted to be bolted to the rod passing down through the battery-cover, as in Patent No. 255,597. The element dips down into the solution contained in the battery-jar. Such solution may be of sal-ammoniac, and the negative element of the batterymay be an electrode of zinc, G, supported from the cover-plate in any desired manner-as, for instance, after the manner shown in Patent No. 255,597. The element G is supported in position in a slot formed in the outer cylinder, as indicated, the object of this arrangement being not only to secure compactness, but also to permit the ready circulation of the battery-liquid through the wall of the outer cylinder. The inner cylinder, D, is provided at g with a slot which permits the access of the battery-liquid to the interior of said cylinder. I

If desired, the element G may be located in a groove or depression formed in the cylinder D and opposite the opening g, though I do not limit myself to this particular location.

The interior of the cylinder D may form a magazine for any che1nical-as, for instance, material forming a depolarizerfor which purpose it should be provided at its end with a stopper, I, of carbon or other proper material. The slot 9 allows access of the batteryliquids to the magazine, or, if desired, such magazine might contain any other material, depending upon the nature of the battery. In a single-fluid battery such as described it might contain sal-ammoniac.

I prefer to make the cylinder D with a slot instead of a number of perforations, since it may be readily cast in one piece with the other parts of the element.

In the modification of my invention illustrated in Fig. 2 the two cups 0r cylinders D E are made separately and fastened together by a rod or bolt, K, passing upward'through an opening in such cylinders and through a perforation in the cover-plate, at the top of which it has a tightening-nut, N. The enlarged head of the rod K engages with the upper end of the inner cylinder around the opening in the same, and by means of the nut N the two cylinders are bound firmly together between said head and the under surface of the cover-plate.

\Vhile I have shown the element as arranged to dip into the solution, it is obvious that it might be used in inverted position, proper connection being made to the same, as will be well understood by electricians.

My invention consists, essentially, in the form and construction of the element itself.

\Vhat I claim as my invention is 1. The carbon or negative element of a galvanic battery, consisting, essentially, of two concentric carbon cylinders attached together at one end.

2. The carbon or negative element for galvanic batteries, consisting of two concentric cylinders or cup-shaped bodies formed with a head, B, as and for the purpose described.

3. Anegative element for galvanic batteries, consisting of two concentric cylinders of carbon attached together, the outer of said cylinders having a slot in its side, as and for the purpose described.

4.. A negative element for galvantic batteries, consisting of two concentric cylinders of carbon, the outer of which is open at its lower end, while the inner has a slot in its side.

5. 'As a new article of manufacture, the carbon element for galvanic batteries, consisting of two concentric cylinders or cup-shaped bodies of carbon formed integral n ith a common head, the inner of said cylinders being provided with a slot in its side.

(5. In a galvanic battery, the combination, with the two concentriccylinders forming the negative element, of a positive element consisting of a zinc electrode supported in a slot or opening in the outer cylinder.

7. In a galvanic battery, a negative element consisting of two concentric hollow cylinders of carbon projecting from a common head, the inner of said cylinders forming a magazine for the battery chemical and being provided with an opening in its side.

8. The combination, with the carbon element, of a supporting metal rod passing through the battery-cover and having a carbon head fitting into a socket in said element.

Signed at New York, in the county of New York and State of New York, this 31st day of December, A. D. 1888.

FRANK SHAW.

Witnesses:

CHARLES SHAW, CHARLES CHRISTMAN. 

